From 979fc98e7060a7e250d8a96095b49a41b10317d0 Mon Sep 17 00:00:00 2001
From: orangemug <info@orangemug.co.uk>
Date: Sat, 18 May 2019 15:47:51 +0100
Subject: [PATCH] Prevent native browser undo/redo when handled by app

---
 src/components/App.jsx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/components/App.jsx b/src/components/App.jsx
index 34216c8..35b3cf7 100644
--- a/src/components/App.jsx
+++ b/src/components/App.jsx
@@ -217,20 +217,24 @@ export default class App extends React.Component {
     })
   }
 
-  handleKeyPress(e) {
+  handleKeyPress = (e) => {
     if(navigator.platform.toUpperCase().indexOf('MAC') >= 0) {
       if(e.metaKey && e.shiftKey && e.keyCode === 90) {
+        e.preventDefault();
         this.onRedo(e);
       }
       else if(e.metaKey && e.keyCode === 90) {
+        e.preventDefault();
         this.onUndo(e);
       }
     }
     else {
       if(e.ctrlKey && e.keyCode === 90) {
+        e.preventDefault();
         this.onUndo(e);
       }
       else if(e.ctrlKey && e.keyCode === 89) {
+        e.preventDefault();
         this.onRedo(e);
       }
     }